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    1   /*
    2    * Copyright (c) 2004 World Wide Web Consortium,
    3    *
    4    * (Massachusetts Institute of Technology, European Research Consortium for
    5    * Informatics and Mathematics, Keio University). All Rights Reserved. This
    6    * work is distributed under the W3C(r) Software License [1] in the hope that
    7    * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
    8    * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    9    *
   10    * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
   11    */
   12   
   13   package org.w3c.dom;
   14   
   15   /**
   16    * This interface permits a DOM implementer to supply one or more 
   17    * implementations, based upon requested features and versions, as specified 
   18    * in . Each implemented <code>DOMImplementationSource</code> object is 
   19    * listed in the binding-specific list of available sources so that its 
   20    * <code>DOMImplementation</code> objects are made available.
   21    * <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407'>Document Object Model (DOM) Level 3 Core Specification</a>.
   22    * @since DOM Level 3
   23    */
   24   public interface DOMImplementationSource {
   25       /**
   26        *  A method to request the first DOM implementation that supports the 
   27        * specified features. 
   28        * @param features  A string that specifies which features and versions 
   29        *   are required. This is a space separated list in which each feature 
   30        *   is specified by its name optionally followed by a space and a 
   31        *   version number.  This method returns the first item of the list 
   32        *   returned by <code>getDOMImplementationList</code>.  As an example, 
   33        *   the string <code>"XML 3.0 Traversal +Events 2.0"</code> will 
   34        *   request a DOM implementation that supports the module "XML" for its 
   35        *   3.0 version, a module that support of the "Traversal" module for 
   36        *   any version, and the module "Events" for its 2.0 version. The 
   37        *   module "Events" must be accessible using the method 
   38        *   <code>Node.getFeature()</code> and 
   39        *   <code>DOMImplementation.getFeature()</code>. 
   40        * @return The first DOM implementation that support the desired 
   41        *   features, or <code>null</code> if this source has none.
   42        */
   43       public DOMImplementation getDOMImplementation(String features);
   44   
   45       /**
   46        * A method to request a list of DOM implementations that support the 
   47        * specified features and versions, as specified in .
   48        * @param features A string that specifies which features and versions 
   49        *   are required. This is a space separated list in which each feature 
   50        *   is specified by its name optionally followed by a space and a 
   51        *   version number. This is something like: "XML 3.0 Traversal +Events 
   52        *   2.0"
   53        * @return A list of DOM implementations that support the desired 
   54        *   features.
   55        */
   56       public DOMImplementationList getDOMImplementationList(String features);
   57   
   58   }

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